CN104577367A - Insulation and fault forecasting method for capacitor device connector - Google Patents
Insulation and fault forecasting method for capacitor device connector Download PDFInfo
- Publication number
- CN104577367A CN104577367A CN201510004288.4A CN201510004288A CN104577367A CN 104577367 A CN104577367 A CN 104577367A CN 201510004288 A CN201510004288 A CN 201510004288A CN 104577367 A CN104577367 A CN 104577367A
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- Prior art keywords
- insulation
- capacitor
- insulating material
- insulating
- insulated conductor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Bodies (AREA)
Abstract
The invention provides an insulation and fault forecasting method for a capacitor device connector. A capacitor, a sleeve of the capacitor, a wiring terminal and connecting wire insulation materials are used. The insulation and fault forecasting method is characterized in that a sealing section is formed on the capacitor and the sleeve of the capacitor in a capacitor device and the insulated wire connecting wire insulation materials, bare metal at the portion is totally wrapped by insulating materials, a complete insulator is formed by the insulating sealing section on the sleeve and an insulated wire and the insulating materials for wrapping the bare metal, the insulator can achieve the insulating effect without damage, caused by electrified body earth breakdown, to the insulator when no overheat exists at the connecting portion and small-animal contact and conductive foreign matter lap joint occur, when overheat is caused by faults such as poor contact at the connecting portion, the insulating materials will be liquefied and flow out, and it is indicated that the faults occur at the portion. According to the insulation and fault forecasting method, the insulating performance of the insulating wire connector in the capacitor device can meet the device insulation requirement, and meanwhile heating caused by the poor electrical contact at the connecting portion can be found in time.
Description
Technical field
The invention belongs to high-voltage power capacitor technical field, particularly relate to insulation recovery and the fault prediction method of connecting-wire connector part in high-voltage power capacitor device.
Background technology
Framework type capacitor device is formed by connecting through connecting line connection in series-parallel by multiple stage capacitor unit and other auxiliary equipment.In order to improve the operational reliability of capacitor device, avoid toy, foreign conducting matter touches connecting line and cause electrified body insulation against ground to destroy, the connecting line in current capacitor device usually selects insulated conductor.But connecting line and capacitor or auxiliary equipment need to be electrically connected, therefore insulated conductor is at these tie point places, need by insulating stripping except exposing plain conductor, and this just causes insulated conductor integral insulation performance to destroy.At present for making electric conductor metal not expose, be usually set with a protective cover in joint.But due between protective cover and insulated conductor and be not hermetic between other connector, the interface therefore between protective cover and these connectors cannot meet insulation property and require, its dielectric strength is very poor, does not have effective insulation protection effect.This just makes this structure there is (1): once toy or these places of conduction abnormal contact, electrified body will be caused to puncture over the ground and capacitor device cannot be run; (2): owing to there is insulation weak spot, size between the wire in capacitor device, wire over the ground size cannot effectively reduce, and make capacitor device size large, uneconomical and unfailing performance is also poor, (3): tie point, once loose contact causes tie point overheated, is difficult to be found by infrared radiation thermometer because junction has protective cover to exist, often causes junction overheated and make equipment be destroyed three obvious shortcomings.
The present invention is destroyed the overheated problem being difficult to forecast of problem and junction of insulation for target to solve insulated conductor and capacitor and auxiliary equipment junction.As the patent No.: the method for the closed encapsulation electric wire connecting portion involved by CN 103545624A, for common wiring splice insulation protection, loose contact heating forecast function cannot be completed.This is because this invention connects for daily electric wire, usual electric current is all little, joint superheating phenomenon is uncommon, and thus this invention only needs solution junction not form naked metal short circuit.And usually insulate thick, electric current of high voltage installation is large, this feature causes that insulating protection difficulty is large, electric current causes junction overheating fault many.Therefore, how to take precautions against High-Voltage Insulation destruction and joint overheated be improve very important two aspects of equipment dependability.
Mostly insulated conductor used is at present the tin-coated copper twisted wire adopting 10kV grade crosslinked polyethylene or other rubber, plastics are insulating barrier, usually the insulating barrier of one section of (50 ~ 100) about mm need being had to be divested in junction with insulated conductor when capacitor and other equipment connection, tin-coated copper twisted wire is exposed, to be connected with the binding post of capacitor and miscellaneous equipment.For making this destroyed insulation recovery, make the binding post of exposed capacitor and miscellaneous equipment can also forecast connection position heating overheating fault while coated insulation layer, the invention provides the insulation of a kind of capacitor device connector and fault prediction method, to solve the problem.
Summary of the invention
Object of the present invention: the present invention is the overheated problem being difficult to forecast of problem and junction being destroyed insulation in order to solve insulated conductor and capacitor and auxiliary equipment junction, thus provide a kind of capacitor device connector to insulate and fault prediction method.
For achieving the above object, the present invention adopts following technical scheme: a kind of capacitor device connector insulation and fault prediction method, comprise capacitor and sleeve pipe thereof and binding post, connecting line insulating material, it is characterized in that: the capacitor in capacitor device and sleeve pipe thereof form a seal section with the insulating material of insulated conductor connecting line, then with insulating material by all coated for the naked metal at this position, make sleeve pipe, the insulating material of the insulated enclosure section on insulated conductor and coated naked metal forms a complete insulator, can when toy contact and conduction foreign matter overlap without this insulation time overheated in junction, play insulating effect and electrified body can not be caused to puncture over the ground and destroy insulation, and there is the faults such as loose contact when junction when causing overheated, this insulating material can liquefy and flow out, and indicate this place to there is fault.
Capacitor device connector insulation as above and fault prediction method, it is characterized in that, a die sleeve is detained on capacitor and sleeve pipe top thereof and the insulated conductor that is connected with tension disc, die sleeve forms a bobbin seal section on sleeve pipe top, the insulated conductor be connected with sleeve pipe is formed insulated conductor seal section, have a sprue in the highest portion position of die sleeve, and form a seal chamber only having sprue to open wide, so that liquid insulating material injects.
Capacitor device connector insulation as above and fault prediction method, it is characterized in that, the insulating material of coated naked metal used is thermoplastic material, or PUR etc. to be heated under uniform temperature can by solid state transformed become liquid material, and the material of curable one-tenth solid insulating material under being cooled to uniform temperature, this material is injected in die sleeve, after solidification to be cooled, an aperture is opened again in the bottom of die sleeve, once be connected with defect, generate heat under the function of current, and when the Insulation Material of having solidified is heated to melt temperature, Insulation Material after thawing will ooze from this aperture, and indicate this connector defectiveness, so that repairing in time avoids defect to expand.
Capacitor device connector insulation as above and fault prediction method, it is characterized in that, coated naked metallic insulator used can be pureed at a certain temperature, the putty material that can liquefy to a timing when temperature is high, this material is directly piled at sleeve pipe terminal and insulated conductor junction and pinches, heap is extruded to shape with mould after pinching again, also can directly be extruded to shape out one on sleeve pipe be connected insulated conductor and all have one section of seal section, again by all naked metallic cover at interior insulator, in junction without time overheated, insulating material is coated on and naked metal protects toy and foreign matter overlap joint damages, and once the overheated materials liquefy that makes of this connector flows down, this place of operations staff can be indicated in time to there is fault and process in time, avoid device damage.
Capacitor device connector insulation as above and fault prediction method, is characterized in that, can add colouring agent in for coated naked metal-insulator.
The present invention compared with prior art tool has the following advantages: while the insulation property making the junction of insulated conductor and miscellaneous equipment in capacitor device be destroyed insulation meet apparatus insulated requirement, can also the bad heating caused of Timeliness coverage junction electrical contact, be key point of the present invention.(1) can make junction insulation recovery like this, prevents toy, conduction foreign matter overlap joint.(2) insulation can be made integral, and reduce equipment size.(3) not yet can cause during device damage and provide warning signal in heating, avoid causing whole plant failure because junction loose contact heating.
Accompanying drawing explanation
Fig. 1 is the structural representation that the capacitor of first embodiment of the invention and miscellaneous equipment stand up enforcement case.
Fig. 2 is that the capacitor of first embodiment of the invention and miscellaneous equipment crouch and put the structural representation of enforcement case.
Fig. 3 is the structural representation of die sleeve.
Fig. 4 is the end view of Fig. 3.
Fig. 5 is the vertical view of Fig. 3.
Fig. 6 is the schematic diagram of second embodiment of the invention.
Embodiment
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with embodiment, but content of the present invention is not only confined to the following examples.Those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values are equally within claims limited range listed by the application.
Symbol description in accompanying drawing: 1-die sleeve, 2-wire seal section, 3-bobbin seal section, 4-sprue, 5-insulated conductor, 6-capacitor casing, 7-liquid dielectric material, 8-peels off the wire of insulation, 9-insulated conductor seal section, 10-tension disc, 11-nut, the solid insulating material of 12-solidification, 13-conducting rod, 14-insulating barrier, 15-flow export, 16-insulating wrapped thing.
Mostly insulated conductor used is at present the tin-coated copper twisted wire adopting 10kV grade crosslinked polyethylene or other rubber, plastics are insulating barrier, usually the insulating barrier of one section of (50 ~ 100) about mm need being had to be divested in junction with insulated conductor when capacitor and other equipment connection, tin-coated copper twisted wire is exposed, to be connected with the binding post of capacitor and miscellaneous equipment.For making this destroyed insulation recovery, make the binding post of exposed capacitor and miscellaneous equipment can also forecast connection position heating overheating fault while coated insulation layer.The present invention adopts one of method of dealing with problems to be: at insulated conductor and capacitor and other equipment connection place overcoat die sleeve, again a kind of insulating material be at high temperature in a liquid state that can solidify at normal temperatures is injected in the cavity of die sleeve, after solidification Insulation Material by be stripped destruction insulation recovery while, also by coated for the binding post of exposed capacitor and miscellaneous equipment, a complete insulation system is formed.But this insulating material thermoplastic, may also be heat-fusible materials, its material can solidify at normal temperatures in a word, at high temperature can liquefy all can use.According to different materials, adopt different technique, finally reach and the wire insulation that insulating material used will be destroyed recovered, and capacitor and the exposed binding post of miscellaneous equipment coated complete insulating barrier, and complete the insulation recovery of insulated conductor and the coated of each equipment naked electric conductor insulating barrier.Thus while making the insulation of wire and connector position meet insulation property requirement, also due to material therefor can be solid insulation at normal temperatures, at high temperature for liquid, such joint is once heating, liquefaction flows out by insulating material, indicates this tie point overheated, plays the effect of forecast fault.
Fig. 1 to Fig. 5 is the invention process case 1.The invention process case 1 is the cannula connection that employing die sleeve 1 is buckled in insulated conductor 5 and capacitor casing 6 or miscellaneous equipment, the wire seal section 2 of die sleeve 1 and seal section 9 compact siro spinning technology of the insulated conductor 5 be connected, the bobbin seal section 3 of die sleeve 1 is tightly connected with the sleeve pipe 6 of wire connected device, form the cavity that is only had sprue 4 pairs of external open, at this moment by normal temperatures curable, at high temperature the liquid dielectric material 7 of liquable material injects cavity from sprue 4 again.Liquid dielectric material 7 will peel off wire 8 and the insulated conductor seal section 9 of insulation, for compressing the tension disc 10 of wire 8, the naked electric conductor such as sleeved conducting rod 13 and the nut 11 being used for compressing tension disc 10 for electricity being introduced equipment all wraps, liquid dielectric material 7 is progressively after cooling curing, flow export 15 is opened again on die sleeve 1, a firm integral type solid insulation 12 can be defined like this in the cavity of this die sleeve 1, naked electric conductor is formed the insulating barrier meeting insulating requirements, reach toy, conduction abnormal contact is former to these also can not there is electric conductor insulation against ground destruction when being the position of naked electric conductor, thermoplastic can be utilized to liquefy when being heated to uniform temperature simultaneously, and flow out from flow export 15, reach and indicate this connector to there is the object of heating accident to operations staff, reach the beneficial effect of the reliable performance of raising equipment.
In embodiments of the invention 1, liquid dielectric material adopts thermoplasticity or heat-fusible materials heating to produce, by heating thermoplastic material to uniform temperature, thermoplastic is made to be fused into liquid material 7, then the liquid material 7 of these heat fused is injected in the cavity of die sleeve 1, after cooling curing, form the solid insulating material 12 of the solidification wrapped by all naked metallic objects, and make the insulation at these former naked metal positions be recovered or set up, at this moment be no matter that toy or foreign conducting matter touch these positions and all will can not cause insulation breakdown, simultaneously once joint connects not good heating, materials liquefy also can be made to flow out and indicate this tie point to have heating accident.
The beneficial effect adopting thermoplasticity or heat-fusible materials to do mould material is: utilize thermoplasticity or heat-fusible materials to be heated to certain temperature and can be melted into this feature liquid, after liquid thermoplastic or heat-fusible materials 7 inject the solidification of die sleeve 1 cavity, open an aperture in the bottom of die cavity and make flow export 15, the benefit done like this is once occur to connect between conductor and conductor not good, when electric current flows through, connecting portion is overheated, again liquid is melted into by causing the solid material 12 of solidification, and ooze from the flow export 15 opened in die sleeve 1 bottom, at this moment equipment runs, attendant very easily will find these drips, and connecting portion existing defects between this place's conductor of Timeliness coverage or conductor, and arrange maintenance, equipment is avoided to damage because of local overheating, another is benefited: the position existing defects of the coated sealing of insulating material 12 once this is cured, by outside, it is heated, this solidification Insulation Material 12 is made again to be melted into liquid dielectric material 7, and flow out from flow export 15, make wire 8, tension disc 10, nut 11 and conducting rod 13 out exposed, after peelling off die sleeve 1, just can to above-mentioned each parts again fastening, connect and eliminate its defect.After defect processing is complete, then die sleeve 1 is detained reposition, and refilled by liquid dielectric material 7 in the cavity of die sleeve 1, cooling Post RDBMS becomes solid insulation 12 and completes repair process.
In the present embodiment, thermoplastic materials used is as plastics such as polyethylene, polypropylene, polyvinyl chloride, polyesters, hot melt material is as materials such as wax, paraffin, EVA, but be not limited to these materials, as long as there is the insulating material that normal temperature can solidify, high temperature can liquefy this characteristic all can use, solidification form, condensing temperature generally can be kept within 100 DEG C to be greater than 110 DEG C of insulating material being less than 200 DEG C and all can to use, condensing temperature higher than when 200 DEG C due to exist other insulation of damage and equipment may, usually not too suitable electric equipment occasion employs.For making indication fault more obvious and more easily finding, the colouring agents such as pigment (as red, yellow etc.) also can be added in these materials.
Fig. 6 is the second embodiment schematic diagram.This embodiment adopts at high temperature can liquefy, at a certain temperature in purees-puttylike, insulating material curable at normal temperatures peelling off the wire 8 of insulation, tension disc 10, nut 11, conducting rod 13 and wire seal section 9, bobbin seal section 3 is carried out coated, insulating wrapped thing 16 shown in pie graph 6, for this coating attractive in appearance can be shaped with special die.After coating sizing, can progressively be solidified into holistic solid insulation, the method helpful: construction is simple, can recover insulation property, junction can be indicated to there is overheating defect again.This embodiment defect compared with embodiment 1 is that this embodiment material ageing-resistant performance used requires high.Due to without overcoat protection, this material directly must tolerate atmospheric aging, otherwise easily aging and lose usefulness.
The content be not described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (5)
1. a capacitor device connector insulation and fault prediction method, comprise capacitor and sleeve pipe thereof and binding post, connecting line insulating material, it is characterized in that: the capacitor in capacitor device and sleeve pipe thereof form a seal section with the insulating material of insulated conductor connecting line, then with insulating material by all coated for the naked metal at this position, make sleeve pipe, the insulating material of the insulated enclosure section on insulated conductor and coated naked metal forms a complete insulator, can when toy contact and conduction foreign matter overlap without this insulation time overheated in junction, play insulating effect and electrified body can not be caused to puncture over the ground and destroy insulation, and there is the faults such as loose contact when junction when causing overheated, this insulating material can liquefy and flow out, and indicate this place to there is fault.
2. capacitor device connector insulation according to claim 1 and fault prediction method, it is characterized in that, a die sleeve is detained on capacitor and sleeve pipe top thereof and the insulated conductor that is connected with tension disc, die sleeve forms a bobbin seal section on sleeve pipe top, the insulated conductor be connected with sleeve pipe is formed insulated conductor seal section, have a sprue in the highest portion position of die sleeve, and form a seal chamber only having sprue to open wide, so that liquid insulating material injects.
3. capacitor device connector insulation according to claim 1 and fault prediction method, it is characterized in that, the insulating material of coated naked metal used is thermoplastic material, or PUR etc. to be heated under uniform temperature can by solid state transformed become liquid material, and the material of curable one-tenth solid insulating material under being cooled to uniform temperature, this material is injected in die sleeve, after solidification to be cooled, an aperture is opened again in the bottom of die sleeve, once be connected with defect, generate heat under the function of current, and when the Insulation Material of having solidified is heated to melt temperature, Insulation Material after thawing will ooze from this aperture, and indicate this connector defectiveness, so that repairing in time avoids defect to expand.
4. capacitor device connector insulation according to claim 1 and fault prediction method, it is characterized in that, coated naked metallic insulator used can be pureed at a certain temperature, the putty material that can liquefy to a timing when temperature is high, this material is directly piled at sleeve pipe terminal and insulated conductor junction and pinches, heap is extruded to shape with mould after pinching again, also can directly be extruded to shape out one on sleeve pipe be connected insulated conductor and all have one section of seal section, again by all naked metallic cover at interior insulator, in junction without time overheated, insulating material is coated on and naked metal protects toy and foreign matter overlap joint damages, and once the overheated materials liquefy that makes of this connector flows down, this place of operations staff can be indicated in time to there is fault and process in time, avoid device damage.
5. capacitor device connector insulation according to claim 1 and fault prediction method, is characterized in that, can add colouring agent in for coated naked metal-insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510004288.4A CN104577367B (en) | 2015-01-06 | 2015-01-06 | The insulation of capacitor device union joint and fault prediction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510004288.4A CN104577367B (en) | 2015-01-06 | 2015-01-06 | The insulation of capacitor device union joint and fault prediction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104577367A true CN104577367A (en) | 2015-04-29 |
| CN104577367B CN104577367B (en) | 2017-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510004288.4A Expired - Fee Related CN104577367B (en) | 2015-01-06 | 2015-01-06 | The insulation of capacitor device union joint and fault prediction method |
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| Country | Link |
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| CN (1) | CN104577367B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112615170A (en) * | 2020-12-03 | 2021-04-06 | 广东电网有限责任公司电力科学研究院 | Electric primary equipment joint and heating processing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2935509Y (en) * | 2006-08-03 | 2007-08-15 | 温州大观电气有限公司 | Cable connection insulator |
| CN201698896U (en) * | 2010-06-12 | 2011-01-05 | 无锡市锡容电力电器有限公司 | Capacitor protective device |
| CN202930228U (en) * | 2012-11-19 | 2013-05-08 | 铜陵市新洲电子科技有限责任公司 | Capacitor sheath |
| CN103137324A (en) * | 2011-12-01 | 2013-06-05 | 河南省电力公司新乡供电公司 | Capacitor protecting structure of outdoor transformer |
| CN103545624A (en) * | 2013-09-30 | 2014-01-29 | 叶春林 | Method and structure for packaging wire connecting portions in closed manner |
-
2015
- 2015-01-06 CN CN201510004288.4A patent/CN104577367B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2935509Y (en) * | 2006-08-03 | 2007-08-15 | 温州大观电气有限公司 | Cable connection insulator |
| CN201698896U (en) * | 2010-06-12 | 2011-01-05 | 无锡市锡容电力电器有限公司 | Capacitor protective device |
| CN103137324A (en) * | 2011-12-01 | 2013-06-05 | 河南省电力公司新乡供电公司 | Capacitor protecting structure of outdoor transformer |
| CN202930228U (en) * | 2012-11-19 | 2013-05-08 | 铜陵市新洲电子科技有限责任公司 | Capacitor sheath |
| CN103545624A (en) * | 2013-09-30 | 2014-01-29 | 叶春林 | Method and structure for packaging wire connecting portions in closed manner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112615170A (en) * | 2020-12-03 | 2021-04-06 | 广东电网有限责任公司电力科学研究院 | Electric primary equipment joint and heating processing method thereof |
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| Publication number | Publication date |
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| CN104577367B (en) | 2017-03-01 |
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Granted publication date: 20170301 Termination date: 20190106 |